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Used 2020 GMC Sierra 2500HD Denali Truck Photo 1 of 17

Used 2020 GMCSierra 2500HD Denali

  • Diesel
    Exterior Color
    Onyx Black
    Interior Color
    Jet Black
    Odometer
    39,099 miles
    Body/Seating
    Truck/5 seats
    Transmission
    10-Speed Automatic
    Drivetrain
    4WD
    Engine
    Duramax 6.6L V8 Turbodiesel
    VIN
    1GT49REY7LF247219
    Stock Number
    11990FM
    GMC Sierra 2500HD
    • Show Me the CARFAX Badge

    Highlighted Features

    • Navigation system
    • Lane departure
    • Leather upholstery
    • Automatic temperature control
    • Premium audio system
    • Wireless phone connectivity
    • Parking sensors
    • Front dual zone A/C
    • Auto high-beam headlights
    • Auto-dimming rearview mirror
    • Split folding rear seat
    • Memory seat

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    Included Packages & Accessories

    • Navigation System
    • 7 Speakers
    • AM/FM radio: SiriusXM
    • Premium audio system: Premium GMC Infotainment System
    • Air Conditioning
    • Automatic temperature control
    • Front dual zone A/C
    • Rear window defroster
    • Memory seat
    • Power driver seat
    • Power steering
    • Power windows
    • Remote keyless entry
    • Steering wheel mounted audio controls
    • Speed-sensing steering
    • Traction control
    • 4-Wheel Disc Brakes
    • ABS brakes
    • Dual front impact airbags
    • Dual front side impact airbags
    • Front anti-roll bar
    • Front wheel independent suspension
    • Low tire pressure warning
    • Occupant sensing airbag
    • Overhead airbag
    • Pickup Box
    • Brake assist
    • Electronic Stability Control
    • Lane Departure Warning System
    • Auto High-beam Headlights
    • Delay-off headlights
    • Front fog lights
    • Fully automatic headlights
    • Panic alarm
    • Security system
    • Speed control
    • 220 Amps Alternator
    • Engine Block Heater
    • Exhaust Brake
    • Heavy-Duty 80 Amp Battery
    • High Idle Switch
    • Auto-dimming door mirrors
    • Bumpers: body-color
    • Front License Plate Kit
    • Heated door mirrors
    • Power door mirrors
    • Rear step bumper
    • Turn signal indicator mirrors
    • Winter Grille Cover
    • 1st & 2nd Row All-Weather Floor Liner (LPO)
    • 2 USB Ports (1st Row)
    • Apple CarPlay/Android Auto
    • Auto-dimming Rear-View mirror
    • Compass
    • Driver door bin
    • Driver vanity mirror
    • Front reading lights
    • Garage door transmitter
    • Genuine wood console insert
    • Genuine wood door panel insert
    • Heated steering wheel
    • Illuminated entry
    • Outside temperature display
    • Overhead console
    • Passenger vanity mirror
    • Rear reading lights
    • Rear seat center armrest
    • Tachometer
    • Telescoping steering wheel
    • Tilt steering wheel
    • Trip computer
    • Voltmeter
    • Forge Perforated Leather-Appointed Front Seat Trim
    • Front Center Armrest
    • Heated front seats
    • Heated rear seats
    • Power passenger seat
    • Split folding rear seat
    • Ventilated front seats
    • Passenger door bin
    • 5th Wheel & Gooseneck Trailer Wiring Provisions
    • Hitch Guidance w/Hitch View
    • In-Vehicle Trailering System App
    • Alloy wheels
    • Wheel Locks (Set of 4) (LPO)
    • Wheels: 20" Multi-Dimensional Polished Aluminum
    • Variably intermittent wipers
    • Denali Ultimate Package
    • Driver Alert Package I
    • Driver Alert Package II
    • Preferred Equipment Group 5SA
    • Technology Package
    • X31 Off-Road Package
    • Bose Premium 7 Speaker Sound System
    • HD Radio
    • Radio: Premium GMC Infotainment Sys w/Navigation
    • SiriusXM w/360L
    • Steering Wheel Audio Controls
    • Electric Rear-Window Defogger
    • 12-Volt Rear Auxiliary Power Outlet
    • 120-Volt Bed Mounted Power Outlet
    • 120-Volt Instrument Panel Power Outlet
    • Driver Memory
    • Power Windows w/Driver Express Up/Down
    • Remote Vehicle Starter System
    • Universal Home Remote
    • Manual Tilt-Wheel/Telescoping Steering Column
    • Off-Road Suspension
    • Electrical Lock Control Steering Column
    • Keyless Open & Start
    • Power Door Locks
    • Power Sunroof
    • Hill Descent Control
    • Unauthorized Entry Theft-Deterrent System
    • 2-Speed Active Transfer Case
    • 6" Rectangular Chromed Tubular Assist Steps
    • IntelliBeam Automatic High Beam On/Off
    • LED Cargo Area Lighting
    • LED Smoked Amber Roof Marker Lamps
    • Polished Exhaust Tip
    • Rear Wheelhouse Liners
    • Signature Denali Grille
    • Spray-On Pickup Box Bed Liner w/Denali Logo
    • 2 USB Ports
    • 2nd Row Dual USB Charge-Only Ports
    • 4G LTE Wi-Fi Hotspot Capable
    • Automatic Emergency Braking
    • Bed View Camera
    • Compass Located In Instrument Cluster
    • Floor-Mounted Center Console
    • Following Distance Indicator
    • Forward Collision Alert
    • GMC Connected Access Capable
    • HD Rear Vision Camera
    • HD Surround Vision w/2 Trailer View Camera Provisions
    • Lane Change Alert w/Side Blind Zone Alert
    • Multicolor 15" Diagonal Head-Up Display
    • OnStar & GMC Connected Services Capable
    • Rear Camera Mirror
    • Rear Cross Traffic Alert
    • Ultrasonic Front & Rear Park Assist
    • Wireless Charging
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Front Bucket Seats
    • Heated & Ventilated Front Bucket Seats
    • Heated 2nd Row Outboard Seats
    • Heated Driver & Front Outboard Passenger Seats
    • Safety Alert Seat
    • Chrome Recovery Hooks
    • Integrated Trailer Brake Controller
    • Deep-Tinted Glass
    • Power Front Passenger Windows w/Express Up/Down
    • Power Rear Windows w/Express Down
    • Power Sliding Rear Window w/Defogger

    Included Packages & Options

    • Denali Ultimate Package$2,370
      • Technology Package
      • Power Sunroof
    • Technology Package$1,875
      • HD Surround Vision w/2 Trailer View Camera Provisions
      • Rear Camera Mirror
      • Keyless Open & Start
      • Bed View Camera
      • Multicolor 15" Diagonal Head-Up Display
    Included Options
    • 220 Amps Alternator$150
    • Engine Block Heater$100
    • High Idle Switch$200
    • 5th Wheel & Gooseneck Trailer Wiring Provisions$35

    Detailed Specifications

    • 1-touch down
    • 1-touch up
    • Air conditioning
    • Auto-dimming rearview mirror
    • Automatic temperature control
    • Driver door bin
    • Driver vanity mirror
    • Front beverage holders
    • Front dual zone A/C
    • Garage door transmitter
    • Heated steering wheel
    • Illuminated entry
    • Memory seat
    • Navigation system
    • Overhead console
    • Passenger door bin
    • Passenger vanity mirror
    • Power windows
    • Proximity key: doors and push button start
    • Rear beverage holders
    • Rear door bins
    • Remote engine start: keyfob
    • Remote keyless entry
    • Speed control
    • Telescoping steering wheel
    • Tilt steering wheel
    • Alloy wheels
    • Front anti-roll bar
    • Front tires: 275/65SR20.0E
    • Front wheel independent suspension
    • Power steering
    • Rear tires: 275/65SR20.0E
    • Single rear wheels
    • Speed-sensing steering
    • Tires: all-terrain
    • Wheel size: 20"
    • 1st row LCD monitors: 2
    • AM/FM radio: SiriusXM
    • Premium audio system: Premium GMC Infotainment System
    • Primary LCD size: 8.0"
    • Smart device integration: Apple CarPlay/Android Auto
    • Speaker type: Bose
    • Speakers: 7
    • Steering wheel mounted audio controls
    • Wireless phone connectivity: Bluetooth
    • Front center armrest
    • Front seats: bucket
    • Genuine wood console insert
    • Genuine wood door panel insert
    • Heated front seats
    • Heated rear seats
    • Leather upholstery
    • Max seating capacity: 5
    • Power 2-way driver lumbar support
    • Power 2-way passenger lumbar support
    • Power driver seat
    • Power passenger seat
    • Rear seat center armrest
    • Rear seats: split-bench
    • Rear seats Folding position: fold-up cushion
    • Seat Upholstery: leather
    • Split folding rear seat
    • Ventilated front seats
    • Cylinder configuration: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel economy fuel type: gasoline
    • Fuel tank capacity: 36.0gal.
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Rear locking differential
    • Variable valve control
    • Ground clearance (min): 257mm (10.1")
    • Auto-dimming door mirrors
    • Bedliner
    • Bumpers: body-color
    • Door mirrors: chrome
    • Heated door mirrors
    • Left rear passenger door: conventional
    • Power door mirrors
    • Rear cargo: tailgate
    • Rear step bumper
    • Right rear passenger: conventional
    • Skid plates
    • Tailpipe finisher: polished
    • Trailer hitch receiver
    • Trailer sway control
    • Turn signal indicator mirrors
    • Exterior body width: 2,079mm (81.8")
    • Exterior height: 2,023mm (79.7")
    • Exterior length: 6,352mm (250.1")
    • Front headroom: 1,093mm (43.0")
    • Front hiproom: 1,554mm (61.2")
    • Front legroom: 1,131mm (44.5")
    • Front shoulder room: 1,677mm (66.0")
    • Rear headroom: 1,013mm (39.9")
    • Rear hiproom: 1,530mm (60.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,659mm (65.3")
    • Towing capacity: 6,577kg (14,500lbs)
    • Turning radius: 8.0m (26.3')
    • Wheelbase: 4,037mm (158.9")
    • Appearance: analog
    • Auto high-beam headlights
    • Blind spot: Lane Change Alert with Side Blind Zone Alert warning
    • Compass
    • Delay-off headlights
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Lane departure: Lane Departure Warning warning
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: UltraSonic front and rear
    • Rear reading lights
    • Rear window defroster
    • Tachometer
    • Trip computer
    • Variably intermittent wipers
    • Voltmeter
    • 4 wheel disc brakes
    • ABS brakes
    • Brake assist
    • Dual front impact airbags
    • Dual front side impact airbags
    • Electronic stability
    • Forward collision: Forward Collision Alert with Automatic Braking mitigation
    • Ignition disable
    • Occupant sensing airbag
    • Overhead airbag
    • Panic alarm
    • Perimeter/approach lights
    • Rear collision: Rear Cross-Traffic Alert warning
    • Security system
    • Traction control

    Standard Features

    • Technology Package
    • Power Sunroof
    • HD Surround Vision w/2 Trailer View Camera Provisions
    • Rear Camera Mirror
    • Keyless Open & Start
    • Bed View Camera
    • Multicolor 15" Diagonal Head-Up Display
    • Driver Alert Package I
    • Driver Alert Package II
    • Safety Alert Seat
    • Radio: Premium GMC Infotainment Sys w/Navigation
    • Floor-Mounted Center Console
    • Compass Located In Instrument Cluster
    • Electric Rear-Window Defogger
    • Power Door Locks
    • Remote Vehicle Starter System
    • Keyless Open & Start
    • OnStar & GMC Connected Services Capable
    • 12-Volt Rear Auxiliary Power Outlet
    • 120-Volt Instrument Panel Power Outlet
    • 120-Volt Bed Mounted Power Outlet
    • 2 USB Ports
    • 2nd Row Dual USB Charge-Only Ports
    • HD Rear Vision Camera
    • Heated Driver & Front Outboard Passenger Seats
    • Heated & Ventilated Front Bucket Seats
    • Heated 2nd Row Outboard Seats
    • Steering Wheel Audio Controls
    • Manual Tilt-Wheel/Telescoping Steering Column
    • Electrical Lock Control Steering Column
    • Unauthorized Entry Theft-Deterrent System
    • Universal Home Remote
    • Power Sliding Rear Window w/Defogger
    • Power Windows w/Driver Express Up/Down
    • Power Front Passenger Windows w/Express Up/Down
    • Power Rear Windows w/Express Down
    • Wireless Charging
    • Spray-On Pickup Box Bed Liner w/Denali Logo
    • 6" Rectangular Chromed Tubular Assist Steps
    • Deep-Tinted Glass
    • Signature Denali Grille
    • LED Smoked Amber Roof Marker Lamps
    • LED Cargo Area Lighting
    • Rear Wheelhouse Liners
    • Chrome Recovery Hooks
    • Polished Exhaust Tip
    • X31 Off-Road Package
    • Integrated Trailer Brake Controller
    • 2-Speed Active Transfer Case
    • Forward Collision Alert
    • Automatic Emergency Braking
    • IntelliBeam Automatic High Beam On/Off
    • Following Distance Indicator
    • Bose Premium 7 Speaker Sound System
    • SiriusXM w/360L
    • HD Radio
    • 4G LTE Wi-Fi Hotspot Capable
    • GMC Connected Access Capable
    • 10-Way Power Driver Seat Adjuster w/Lumbar
    • 10-Way Power Passenger Seat Adjuster w/Lumbar
    • Driver Memory
    • Ultrasonic Front & Rear Park Assist
    • Lane Change Alert w/Side Blind Zone Alert
    • Rear Cross Traffic Alert
    • Off-Road Suspension
    • Hill Descent Control

    Dealer Notes

    2020 GMC SIERRA 2500HD DENALI DURAMAX DIESEL 4WD ONYX BLACK

    This is top-of-the-food-chain heavy duty.

    If you want a diesel truck that tows like a monster but rides like a luxury SUV, this 2020 Sierra 2500HD Denali is it. Powered by the 6.6L Duramax Turbo Diesel, backed by a 10-speed automatic, and loaded with Denali Ultimate + Technology Packages, this truck does everything and does it in style.

    This isnt a work truck. This is a power statement.

    THE MONEY MAKERS

    6.6L Duramax V8 Turbo Diesel

    10-Speed Automatic Transmission

    4WD w/ 2-Speed Active Transfer Case

    Denali Ultimate Package

    Technology Package

    X31 Off-Road Package

    Integrated Trailer Brake Controller

    HD Surround Vision + Bed View Camera

    Rear Camera Mirror

    Multicolor 15" Head-Up Display

    Power Sunroof

    DENALI PRESENCE

    Signature Denali Grille

    6" Chromed Tubular Assist Steps

    Chrome Recovery Hooks

    LED Smoked Amber Roof Marker Lamps

    Polished Exhaust Tip

    Rear Wheelhouse Liners

    Spray-On Bedliner w/ Denali Logo

    Deep-Tinted Glass

    LUXURY THAT HITS HARD

    Jet Black Perforated Leather Interior

    Heated & Ventilated Front Seats

    Heated Rear Outboard Seats

    Heated Steering Wheel

    Power Sliding Rear Window

    Wireless Charging

    Universal Home Remote

    Premium Center Console

    Power Everything

    ADVANCED SAFETY & TECH

    Automatic Emergency Braking

    Forward Collision Alert

    Lane Change Alert & Blind Zone

    Rear Cross Traffic Alert

    Safety Alert Seat

    Front & Rear Park Assist

    IntelliBeam Auto High Beams

    4G LTE Wi-Fi Hotspot Capable

    MILEAGE

    36,919 miles BELOW market average

    This Sierra Denali is loaded, clean, and dialed in diesel power, luxury comfort, and serious towing capability all in one brutal package.

    If you know what Denali means, you already want this truck.


    NO HAGGLE PRICING - 106 POINT CERTIFIED INSPECTION FINANCING AVAILABLE NATIONWIDE - WE WELCOME YOUR TRADES NO PRICING GAMES WITH HIDDEN FEES! CALL US FOR YOUR OUT THE DOOR PRICE. Call Us Today @ 717-664-2222! We are located in Lancaster PA near Harrisburg and Philadelphia. Disclaimer: We do our best to make sure this information is accurate; however, we are not responsible for any errors or omissions contained on these pages. Please verify any information in question with Mark Martin Motors.

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall3.8Out of 5

    • Transmission trash

      By Jason on Monday, April 07, 2025

      2.0
      Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk…

    • Infotainment system unreliable!

      By Brian C on Friday, June 27, 2025

      3.0
      The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another.…

    • Fantastic truck

      By Jjj on Sunday, November 07, 2021

      5.0
      This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!…
    Based on 13 consumer ratings for 2020–2026 models. | Privacy
    Price
    $61,500
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